Comparison

FieldMap Pro vs GNSS Log App

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FieldMap Pro

This mapping tool allows field technicians to access and utilize GIS maps offline or with unreliable network connections. It supports dynamic labeling, data collection through custom forms, asset searching, and real-time GPS tracking for enhanced situational awareness and efficient field operations.

Highlights
  • Offline GIS map display
  • Dynamic map labeling
  • Layer control
  • Asset search via AR or text
  • Custom data collection forms
  • Real-time GPS tracking
  • Distance and area measurement
Features
Read full description

FieldMap is a mobile mapping tool that enables you to bring your proprietary GIS (ArcMap, ArcGIS Pro, or GeoMedia) map into the field for use in offline or connected mode by field tech workers. Field tech workers can still work effectively where the wireless network is unreliable or non-existent. The dynamically rendered and labeled map increases situational awareness and provides access to custom, concise, sophisticated forms that integrate GIS-related info and external work-related asset management info for data collection. FieldMap provides all the functionality needed in the field: - Offline, vector, WYSIWYG display of your GIS map that has been published from your GIS and downloaded to your device. - Fully, dynamically labeled map according to your configuration in GIS for rapid map comprehension. - Layer Control for turning layers on and off. - Search for assets via attribute text or location-based augmented reality. - Review asset attributes by tapping the asset on the map. - Bring up a published asset form by tapping on the asset for easy data collection. - Capture new assets in the field by tapping on the screen and/or using the on-board or external GPS receiver and also associate photos with the asset. - Real time GPS location displayed on the map - Distance and Area Measurement tools - Overlay your GIS map on Apple Maps imagery or proprietary offline imagery (JP2 or ECW files). - Mark-up map with redlines, share them with other FieldMap users, and email map image to back-office - Download, display, and mark-up documents such as manuals, building plans, etc and share mark-up with other FieldMap users. In the office, an organization can configure: - User accounts for FieldMap users via a MapText web portal called FieldBox. - Map publishing for use in the field - Label placement rules with scale ranges - Attributes for review in the field - Search filters for the various layers - Synchronization of field edits back into GIS

About

GNSS Log App

This app provides a digital solution for surveyors and geodesists to document static GNSS observations. It offers comprehensive equipment management, direct integration with geodetic databases, and tools for field data collection, all while ensuring professional, publication-ready PDF output.

Highlights
  • Digital static GNSS observation logging
  • Comprehensive equipment library management
  • Direct NGS database integration
  • OPUS solution import and integration
  • Field tools: timers, weather, photos, visibility diagrams
  • Publication-ready PDF export
  • Privacy-focused, no account required
Read full description

GNSS Obs - Professional Observation Logs GNSS Obs is the professional solution for documenting static GNSS observations. Designed for surveyors, geodesists, and geospatial professionals, it eliminates transcription errors and ensures consistent, accurate project documentation. Replace Paper Logs with Digital Precision Stop relying on paper forms, fillable PDFs, and handwritten notes. GNSS Obs provides a structured workflow that promotes accuracy and completeness while maintaining the professional standards required for geodetic control projects. Comprehensive Equipment Management Build and maintain your equipment library with support for: • Fixed height, collapsible and adjustable tripods • Antenna extensions • Integrated antenna/receiver configurations • Complete metadata for NGS compliance Import and export library items to share standardized configurations across your organization. Direct NGS Database Integration Access public monument data directly from: • National Geodetic Survey Integrated Database (IDB) • OPUS Share Database • NOAA CO-OPS Stations Monuments can also be entered manually when working with local control networks. OPUS Solution Integration Import OPUS solution emails to automatically populate: • Observed positions • Actual observation times • Session statistics • Solution quality metrics Include the complete OPUS solution in your PDF output for comprehensive project records. Essential Field Tools • Session timers with local notifications • Automatic weather recording at session start and end • Photo documentation with NGS-compliant naming • Satellite visibility diagrams using device motion sensors • Real-time editing before, during, and after observations Professional Documentation Export publication-ready PDF observation logs featuring: • Your company logo and branding • Complete equipment configurations • Weather conditions • Site photographs • Visibility diagrams • OPUS solutions Share via Files, email, AirDrop, or messaging. Note: This app documents observations and does not communicate with GNSS receivers. It is designed as a field companion for recording session metadata and producing professional deliverables. Privacy First All data remains on your device. No account required. Full control over exports and backups. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FieldMap Pro4 screens
GNSS Log App4 screens

Verdict

The call

The clearest difference is ratings volume: GNSS Log App at 16 against FieldMap Pro's 3. FieldMap Pro's advantage is iOS requirement (12.0 vs 18.0). On price, rating, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for FieldMap Pro against 4.9 for GNSS Log App. That said, the two scores are not equally well evidenced: GNSS Log App has 16 ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 7, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 8 level
FieldMap Pro versus GNSS Log App: the parameters behind the verdict, then further details
ParameterFieldMap ProGNSS Log App
PriceFreeFree
Rating5.0 (3 ratings) — better4.9 (16 ratings)
Positive reviews—100.0% of reviews
Number of ratings316 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better18.0
Further details — not scored
Size63 MB204 MB
Age rating4+4+
DeveloperMapText, Inc.John May

Customer experience

FieldMap Pro

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

GNSS Log App

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

FieldMap Pro

No in-app purchases

None

GNSS Log App

No in-app purchases

Questions

Is FieldMap Pro free?
FieldMap Pro is free to download, with no in-app purchases.
Is GNSS Log App free?
GNSS Log App is free to download, with no in-app purchases.
Which has better reviews, FieldMap Pro or GNSS Log App?
FieldMap Pro is rated higher. FieldMap Pro averages 5.0 out of 5 from 3 ratings, while GNSS Log App averages 4.9 from 16 ratings.
Do FieldMap Pro or GNSS Log App have ads?
Neither FieldMap Pro nor GNSS Log App shows ads.
Which is updated more often, FieldMap Pro or GNSS Log App?
FieldMap Pro ships an update every 2 months, and GNSS Log App every 2 months. Most recently, FieldMap Pro was updated on September 7, 2026 and GNSS Log App on September 9, 2026.

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